Philodendron verrucosum ‘Incensi’ is a highly sought-after species known for its distinct, luxurious foliage. The leaves are large, heart-shaped, and feature a velvety texture, often characterized by striking, contrasting venation where the dark green surface is intersected by prominent, lighter veins. As a climbing aroid native to the tropical rainforests of Central and South America, this plant requires specialized conditions that mimic its native, humid understory environment to thrive indoors.
Creating the Ideal Environment
The velvety leaves are sensitive to intense light and low humidity, requiring careful environmental management. This philodendron flourishes in bright, indirect light, similar to the dappled sunlight it receives under the rainforest canopy. Place the plant near an east- or north-facing window, or several feet back from a south-facing window, to provide necessary light without the risk of leaf scorch. Insufficient light can lead to leggy growth and duller leaf colors.
The plant prefers a warm temperature range between 65–85°F (18–29°C). Avoid cold drafts or temperatures dropping below 55°F (13°C), as this can cause significant stress and damage.
Humidity is the most important factor for the health of P. verrucosum ‘Incensi,’ which thrives in a range of 70% to 80%. When humidity falls below 60%, the delicate leaves will often develop crispy, brown edges and tips. To achieve these high levels, using a dedicated humidifier or growing the plant within an enclosed space like a terrarium or greenhouse cabinet is recommended. Simple misting is generally ineffective at providing the sustained humidity the plant requires.
Substrate, Watering, and Feeding Routine
As a hemiepiphyte, this philodendron requires a well-aerated, chunky substrate that allows roots to breathe while retaining some moisture. An ideal potting mix should be loose and composed of materials like orchid bark, perlite, coco coir, and charcoal. This mixture ensures excellent drainage, preventing root rot.
The watering schedule should be consistent, allowing the top one to two inches of the substrate to dry out before rewatering thoroughly. Ensure the water drains completely from the pot’s base, and never leave the plant sitting in the drained water. During the cooler winter months, when plant growth slows, the frequency of watering should be significantly reduced.
Fertilization supports vigorous growth during the active season, which typically runs from spring through summer. Use a balanced, water-soluble liquid fertilizer, diluted to half the strength recommended on the product label. Applying this diluted solution once a month during the growing period is sufficient. Feeding should be paused completely during the fall and winter to prevent the buildup of salts.
Essential Maintenance and Growth Support
Because Philodendron verrucosum is a vining climber, providing a sturdy vertical support structure is necessary for the plant to mature properly. A moss pole or similar climbing apparatus encourages the plant to utilize its aerial roots, which anchors it as it grows upward. Climbing allows the plant to reach its full potential, resulting in the development of significantly larger leaves.
Routine maintenance involves selectively pruning any yellowed or damaged leaves to redirect energy toward healthy new growth. When the velvety leaves accumulate dust, clean them gently using a soft, damp cloth. This care is necessary to avoid damaging the fine hairs that give the leaves their unique texture.
Repotting is typically necessary every one to two years, or when the plant’s root system has become congested. When repotting, select a container that is only slightly larger than the previous one, ensuring it has adequate drainage holes. Refreshing the soil mixture during this process provides new nutrients and maintains the necessary airy structure for the roots.
Propagation and Troubleshooting Common Issues
Philodendron verrucosum is readily propagated using stem cuttings, a process best undertaken during the spring or summer growing season. To take a cutting, use a clean, sharp tool to remove a section of the stem that includes at least one node and one leaf. The node is the point on the stem from which new roots and shoots will emerge.
The cutting can be rooted in water, moist sphagnum moss, or a small pot of aerated potting mix. If rooting in water, the node must be submerged while keeping the leaf above the water line, and the water should be changed weekly. Once roots have developed to a length of a couple of inches, the new plant can be transferred into its permanent chunky aroid mix.
Troubleshooting involves recognizing common signs of distress. Brown, crispy leaf edges are a strong indicator of low ambient humidity. Yellowing lower leaves frequently signal overwatering or poor drainage, leading to root stress. Pests like spider mites and thrips are sometimes attracted to the soft, velvety texture of the leaves. Regular inspection of the foliage is the best preventative measure, and any infestations should be treated promptly with an appropriate, gentle insecticide.